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Self-sustained gigahertz electronic oscillations in ultrahigh-Q photonic microresonators

Author(s)
Soltani, Mohammad; Yegnanarayanan, Siva; Li, Qing; Eftekhar, Ali A.; Adibi, Ali
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Abstract
We report on theoretical and experimental observations of self-sustained fast [gigahertz (GHz)] electronic oscillations resulting from coupled electron-photon dynamics in ultrahigh-Q Si microdisk resonators with cw pumping. Our theoretical analysis identifies conditions for generating steady-state GHz oscillations while suppressing thermal oscillations [megahertz (MHz)] with submilliwatt input laser power. Such fast oscillations are tunable via changing the free-carrier (FC) lifetime of the resonator. Integrating a p-i-n diode with these high-Q resonators for controlling the FC lifetime promises the realization of an integrated voltage-controlled oscillator (VCO) in a silicon photonics chip.
Date issued
2012-05
URI
http://hdl.handle.net/1721.1/71721
Department
Lincoln Laboratory
Journal
Physical Review A
Publisher
American Physical Society
Citation
Soltani, Mohammad et al. “Self-sustained Gigahertz Electronic Oscillations in ultrahigh-Q Photonic Microresonators.” Physical Review A 85.5 (2012). ©2012 American Physical Society
Version: Final published version
ISSN
1050-2947
1094-1622

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